Three Wire Midnight Pulse

In this system Master clock  generates  12V DC impulse  at Mid-night  and all the connected slaves gets Reset at 00:00 (24H mode).

In this system 2 wire is used  for supply to connected slaves and remaining  1 wire is used for midnight pulse. DYNATEK Slaves have opto-coupler interface to accept that as synchronizing Midnight impulse.

This system is used only in upgrading of older installations, where a number of old electro-mechanical clocks exists and have to be gradually updated to digital clocks by using existing cable net-work.